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* [Bug c++/96115] New: Char literal, decays to a pointer when passed to function pointer
@ 2020-07-08 14:21 boris_oncev at hotmail dot com
2020-07-08 15:45 ` [Bug c++/96115] " redi at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: boris_oncev at hotmail dot com @ 2020-07-08 14:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96115
Bug ID: 96115
Summary: Char literal, decays to a pointer when passed to
function pointer
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: boris_oncev at hotmail dot com
Target Milestone: ---
Example code:
struct SL{
template <int N>
SL(const char (&Str)[N]) {}
};
int foo(SL x) {
return 2;
}
int main() {
int (*f)(SL) = &foo;
foo("asd"); // works fine
f("asd"); // error could not convert '(const char*) to SL
}
Godbot link:
https://godbolt.org/z/vo8lOf
works on other compilers clang, msvc and icc
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/96115] Char literal, decays to a pointer when passed to function pointer
2020-07-08 14:21 [Bug c++/96115] New: Char literal, decays to a pointer when passed to function pointer boris_oncev at hotmail dot com
@ 2020-07-08 15:45 ` redi at gcc dot gnu.org
2020-11-03 15:47 ` ldalessandro at gmail dot com
2021-12-17 6:09 ` [Bug c++/96115] string " pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: redi at gcc dot gnu.org @ 2020-07-08 15:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96115
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2020-07-08
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/96115] Char literal, decays to a pointer when passed to function pointer
2020-07-08 14:21 [Bug c++/96115] New: Char literal, decays to a pointer when passed to function pointer boris_oncev at hotmail dot com
2020-07-08 15:45 ` [Bug c++/96115] " redi at gcc dot gnu.org
@ 2020-11-03 15:47 ` ldalessandro at gmail dot com
2021-12-17 6:09 ` [Bug c++/96115] string " pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: ldalessandro at gmail dot com @ 2020-11-03 15:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96115
Luke Dalessandro <ldalessandro at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ldalessandro at gmail dot com
--- Comment #1 from Luke Dalessandro <ldalessandro at gmail dot com> ---
This continues to be a problem in gcc trunk, and impacts real code that
attempts to use `std::span` arguments.
Templates are not necessary to reproduce this behavior.
https://godbolt.org/z/PYreGK
```
struct span
{
span( int (&)[2] ) {}
};
bool foo(span) {
return true;
}
bool baz(bool (&op)(span), int i, int j) {
int array[] = {i, j};
int (&ref)[2] = array;
return op(ref);
}
auto x = baz(foo, 1, 2);
```
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/96115] string literal, decays to a pointer when passed to function pointer
2020-07-08 14:21 [Bug c++/96115] New: Char literal, decays to a pointer when passed to function pointer boris_oncev at hotmail dot com
2020-07-08 15:45 ` [Bug c++/96115] " redi at gcc dot gnu.org
2020-11-03 15:47 ` ldalessandro at gmail dot com
@ 2021-12-17 6:09 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-17 6:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96115
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=95596
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Very similar to PR 95596.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-12-17 6:09 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2020-07-08 14:21 [Bug c++/96115] New: Char literal, decays to a pointer when passed to function pointer boris_oncev at hotmail dot com
2020-07-08 15:45 ` [Bug c++/96115] " redi at gcc dot gnu.org
2020-11-03 15:47 ` ldalessandro at gmail dot com
2021-12-17 6:09 ` [Bug c++/96115] string " pinskia at gcc dot gnu.org
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